diff --git a/crates/ordinals/src/rune.rs b/crates/ordinals/src/rune.rs
index ab052c045a..9ad0fe31b5 100644
--- a/crates/ordinals/src/rune.rs
+++ b/crates/ordinals/src/rune.rs
@@ -119,7 +119,7 @@ impl Rune {
   pub fn reserved(block: u64, tx: u32) -> Self {
     Self(
       Self::RESERVED
-        .checked_add(u128::from(block) << 32 | u128::from(tx))
+        .checked_add((u128::from(block) << 32) | u128::from(tx))
         .unwrap(),
     )
   }
@@ -416,7 +416,7 @@ mod tests {
     assert_eq!(Rune::reserved(1, 1), Rune(Rune::RESERVED + (1 << 32) + 1));
     assert_eq!(
       Rune::reserved(u64::MAX, u32::MAX),
-      Rune(Rune::RESERVED + (u128::from(u64::MAX) << 32 | u128::from(u32::MAX))),
+      Rune(Rune::RESERVED + ((u128::from(u64::MAX) << 32) | u128::from(u32::MAX))),
     );
   }
 
diff --git a/crates/ordinals/src/spaced_rune.rs b/crates/ordinals/src/spaced_rune.rs
index 72c19125c8..9fd961eb59 100644
--- a/crates/ordinals/src/spaced_rune.rs
+++ b/crates/ordinals/src/spaced_rune.rs
@@ -53,7 +53,7 @@ impl Display for SpacedRune {
     for (i, c) in rune.chars().enumerate() {
       write!(f, "{c}")?;
 
-      if i < rune.len() - 1 && self.spacers & 1 << i != 0 {
+      if i < rune.len() - 1 && self.spacers & (1 << i) != 0 {
         write!(f, "•")?;
       }
     }
diff --git a/crates/ordinals/src/varint.rs b/crates/ordinals/src/varint.rs
index f6a226946a..bddc45df84 100644
--- a/crates/ordinals/src/varint.rs
+++ b/crates/ordinals/src/varint.rs
@@ -95,7 +95,7 @@ mod tests {
     let mut n = 0;
 
     for i in 0..129 {
-      n = n << 1 | (i % 2);
+      n = (n << 1) | (i % 2);
       let encoded = encode(n);
       let (decoded, length) = decode(&encoded).unwrap();
       assert_eq!(decoded, n);
diff --git a/src/index/entry.rs b/src/index/entry.rs
index 464cae34ff..59b16a6cfb 100644
--- a/src/index/entry.rs
+++ b/src/index/entry.rs
@@ -469,7 +469,7 @@ impl Entry for SatRange {
   fn store(self) -> Self::Value {
     let base = self.0;
     let delta = self.1 - self.0;
-    let n = u128::from(base) | u128::from(delta) << 51;
+    let n = u128::from(base) | (u128::from(delta) << 51);
     n.to_le_bytes()[0..11].try_into().unwrap()
   }
 }
diff --git a/src/index/updater/inscription_updater.rs b/src/index/updater/inscription_updater.rs
index 696990083b..ce669ca0fb 100644
--- a/src/index/updater/inscription_updater.rs
+++ b/src/index/updater/inscription_updater.rs
@@ -252,7 +252,7 @@ impl InscriptionUpdater<'_, '_> {
     // still have to normalize over inscription size
     for flotsam in &mut floating_inscriptions {
       if let Flotsam {
-        origin: Origin::New { ref mut fee, .. },
+        origin: Origin::New { fee, .. },
         ..
       } = flotsam
       {
diff --git a/src/subcommand/server.rs b/src/subcommand/server.rs
index 35c97c9fb6..1ccc556bcb 100644
--- a/src/subcommand/server.rs
+++ b/src/subcommand/server.rs
@@ -619,7 +619,7 @@ impl Server {
       };
     }
 
-    let satscard = if let Some(query) = uri.query() {
+    let satscard = if let Some(query) = uri.query().filter(|query| !query.is_empty()) {
       let satscard = Satscard::from_query_parameters(settings.chain(), query).map_err(|err| {
         ServerError::BadRequest(format!("invalid satscard query parameters: {err}"))
       })?;
@@ -7448,6 +7448,14 @@ next
     );
   }
 
+  #[test]
+  fn satscard_empty_query_parameters_are_allowed() {
+    TestServer::builder()
+      .chain(Chain::Mainnet)
+      .build()
+      .assert_html("/satscard?", SatscardHtml { satscard: None });
+  }
+
   #[test]
   fn satscard_display_without_address_index() {
     TestServer::builder()